Hello guys. I was wondering is there such a thing to prevent rust on airguns? Like some kind of spray or wax or anything to rub on the gun to stop it from rusting? I have a few guns sitting in the safe without touching for a year or so and when I check them. They would have rust spots usually on the outter barrels and air tubes. Also pulled liner out from my impact and I can see it's rusted also. Here is a photo of my liner pulled from my impact vs a new liner. Want to know what you guys use to prevent rust buildup.